CVE Vulnerability

CVE-2020-15530

An issue was discovered in Valve Steam Client 2.10.91.91. The installer allows local users to gain NT AUTHORITYSYSTEM privileges because some parts of %PROGRAMFILES(X86)%Steam and/or %COMMONPROGRAMFILES(X86)%Steam have weak permissions during a critical time window. An attacker can make this time window arbitrarily long by using opportunistic locks.

7.2 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 10

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

Scope

7.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
http://daniels-it-blog.blogspot.com/2020/07/steam-arbitrary-code-execution-part-2.html Exploit Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:valvesoftware:steam_client:2.10.91.91:*:*:*:*:*:*:*
Information

Published : 2020-07-05 01:15

Updated : 2021-07-21 11:39

NVD link : CVE-2020-15530

Mitre link : CVE-2020-15530

Products Affected

Steam Client

Valvesoftware

CWE
CWE-362